Check engine light
Race Director
Joined: Jan 2006
Posts: 18,396
Likes: 169
Disconnect the battery and let the car sit for a few minutes, then reconnect. The CEL should be gone, and the ECM may have compensated for the headers, and not return. If it doesn't go out, you may need a tune.
Safety Car
Joined: Aug 2006
Posts: 4,206
Likes: 6
From: Makena, Maui & NM
Yes, its normal for headers. You or somebody else will need to tune it out along with smog emmision police inspection considerations. btw- try filling out your profile.
Safety Car
Joined: Jul 2001
Posts: 4,609
Likes: 490
From: Houston, Texas
St. Jude Donor '20-'21-'22-'23
Most any O'Reilly Auto Parts store, AutoZone, Checker, Advance Auto Parts store, etc, have a code checker that they will let you use free of charge at the store in the parking lot that will not only read the code, but also reset the code and turn off the check engine light. Try that a time or two and see if the car gets used to the new headers. Some have had success doing this and the light did not come back on.
Hope this helps, best of luck,
- HPJ -
Hope this helps, best of luck,
- HPJ -
Tech Contributor
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
All mods that affect airflow require a retune of the car. Headers in all cases need the car to be tuned. Most change fuel trends by 8-10% and the spark advance is also affected differently in different areas.
